Loratadine vs Osimertinib

## Loratadine vs Osimertinib: Overview

This comparison examines the pharmacological differences between **Loratadine** and **Osimertinib**.

## Mechanism of Action

**Loratadine**: Second-generation H1 antihistamine with minimal CNS effects.

**Osimertinib**: Third-generation irreversible EGFR TKI targeting T790M resistance mutation and activating mutations.

## Pharmacokinetics

**Half-life**: Loratadine — 8 hours; Osimertinib — 48 hours.

## Chemical Properties

**Molecular Formula**: Loratadine — C22H23ClN2O2; Osimertinib — C28H33N7O2.

**Molecular Weight**: Loratadine — 382.8800 g/mol; Osimertinib — 499.6050 g/mol.

**Type**: Loratadine — Small molecule; Osimertinib — Small molecule.